Grade 12 Combination Circuits Worksheet
A worksheet for Grade 12 students covering combination circuits, including series and parallel components, and calculations for total resistance, current, and voltage.
Includes
Standards
Topics
Combination Circuits
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Read each question carefully and provide detailed answers. Show all your work for calculation problems.
1. A combination circuit contains both and components.
2. In a series part of a combination circuit, the current is through all components.
3. In a parallel part of a combination circuit, the voltage drop across each branch is .
1. Which of the following is true for the total resistance in a series portion of a combination circuit?
It is the sum of individual resistances.
It is the reciprocal of the sum of reciprocals.
It is always less than the smallest resistance.
It is always equal to the largest resistance.
2. How is the total current calculated in a parallel portion of a combination circuit?
It is the sum of the currents in each branch.
It is the same as the current in any single branch.
It is inversely proportional to the total resistance.
It can only be measured directly.
1. Describe the key steps involved in analyzing a complex combination circuit to find the total resistance.
Consider the following combination circuit. Assume the voltage source (V) is 12V.
In the circuit diagram above, let R1 = 4Ω, R2 = 6Ω, and R3 = 12Ω.
a) Calculate the equivalent resistance of the parallel combination of R2 and R3.
b) Calculate the total resistance of the entire circuit.
c) Determine the total current flowing from the voltage source.
d) Find the current flowing through R1.
e) Calculate the voltage drop across R1.
f) Determine the voltage drop across the parallel combination of R2 and R3.
g) Calculate the current flowing through R2 and R3 individually.
1. Adding more resistors in series to a combination circuit will always decrease the total current.
True
False
2. In a combination circuit, the voltage across components in parallel is the same.
True
False